As tension between the Left and UPA simmers, the CPI issues a warning to the ruling coalition saying it would not hesitate to 'file divorce papers' if it comes to that.

As tension between the Left and UPA simmered on the Indo-US nuclear deal issue, the CPI said on Thursday night the "honeymoon is over" and issued a terse warning to the ruling coalition saying it would not hesitate to "file divorce papers" if it comes to that.

The two points of view (that of the governemnt and the Left) on the Indo-US deal were "irreconcialable", CPI General Secretary AB Bardhan told a private news channel adding Prime Minister Manmohan Singh had made a statement on the issue in Parliament because there was difference in opinion.

"Now, the difference is that the honeymoon period is over...It is only a question of filing divorce papers if it comes to that end. The Prime Minister knows it and he is the one person who knows it," Bardhan said.

He said the Left has the right to pull down the government any time if they feel that the coalition was not serving its purpose.

"...Some people think that he (Singh) should not have made (that statement). But I think he made it deliberately and he understood it fully well," Bardhan said.